Preventing tire wear is about regular maintainence to your vehicle. You should rotate your tires every 5,000 miles , and keep your tire pressure at factory pressures as indicated by the tag inside the drivers door column. Alignment is another factor in tire wear , look at your tires carefully . Look for any unusual wear , especally on the inside of the tires, as this is usually the most troublesome spot. As vehicles age , the springs lose their tension to a degree. This causes a problem in the tire angle called "camber". The vehicles wheels are tilted inward at the top. Excessive negative camber will wear the inside of the tire. Most vehicles can have this corrected by properly aligning the vehicle . Another wear problem can be caused by the toe adjustment being out of specifications . This is the most destructive angle to tires , it the same angle you use to steer the vehicle left and right . It normally causes inner and outer tire edges to wear rough in one direction smooth in another while rubbing your hand around the tire. Both these angles can be corrected by a professional alignment . Be sure the technician inspects your front end for any worn parts, as aligning it with them is a waste of money and time . Always ask for a before and after printout of your alignment.
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There are a couple reasons for tire feathering.
First, the type of tire purchased and installed may have a lot to do with the issue. A low "Tread Wear number" (such as 150-180-200/imprinted on the sidewall) will wear faster, ie feather faster. The remedy here is to rotate the tires every 3,000 miles.
Second, and probably more importantly, is to consider how the alignment is, Since you did not mention any prior alignments, I would seriously recommend a 4-wheel alignment, and have the technican provide you "before" and "after" readings. I would suspect that you will see a front or rear 'toe-out' condition; in other words, the tires are turned slightly outwards. This will def give you some rather serious feathering.
Suggestion: Take your car to a qualified front end alignment shop; preferably at a Toyota dealership. They will be able to diagnose the alignment, and make the necessary adjustments to cure your problem.
people drive differently and cars are set up differently --if ur friend is an aggressive driver and doesnt take care of tires [maintain air pressure--rotate-and alignment etc] which would make any vehicle will eat tires- also different tire companies products wear different
It depends on what kind of uneven wear you are talking about if the front is wearing on the inside or outside on one side or both yes you need an alignment but if front tires are are worn about the same on the inside and outside of the tire that is not uncommon it is better to rotate the tires about every 5,000-7,000 and keep the air close to maximum as they will get you better gas mileage and wear better example if the tire says a maximum of 44psi put about 38-40psi when tires are cold and havent been ran.If those are the original tires and you have 49,000 on your car then you don't need an alignment.